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- // SPDX-License-Identifier: GPL-2.0-only
- /*
- * STMicroelectronics magnetometers driver
- *
- * Copyright 2012-2013 STMicroelectronics Inc.
- *
- * Denis Ciocca <[email protected]>
- */
- #include <linux/kernel.h>
- #include <linux/module.h>
- #include <linux/mod_devicetable.h>
- #include <linux/spi/spi.h>
- #include <linux/iio/iio.h>
- #include <linux/iio/common/st_sensors.h>
- #include <linux/iio/common/st_sensors_spi.h>
- #include "st_magn.h"
- /*
- * For new single-chip sensors use <device_name> as compatible string.
- * For old single-chip devices keep <device_name>-magn to maintain
- * compatibility
- * For multi-chip devices, use <device_name>-magn to distinguish which
- * capability is being used
- */
- static const struct of_device_id st_magn_of_match[] = {
- {
- .compatible = "st,lis3mdl-magn",
- .data = LIS3MDL_MAGN_DEV_NAME,
- },
- {
- .compatible = "st,lsm303agr-magn",
- .data = LSM303AGR_MAGN_DEV_NAME,
- },
- {
- .compatible = "st,lis2mdl",
- .data = LIS2MDL_MAGN_DEV_NAME,
- },
- {
- .compatible = "st,lsm9ds1-magn",
- .data = LSM9DS1_MAGN_DEV_NAME,
- },
- {
- .compatible = "st,iis2mdc",
- .data = IIS2MDC_MAGN_DEV_NAME,
- },
- {}
- };
- MODULE_DEVICE_TABLE(of, st_magn_of_match);
- static int st_magn_spi_probe(struct spi_device *spi)
- {
- const struct st_sensor_settings *settings;
- struct st_sensor_data *mdata;
- struct iio_dev *indio_dev;
- int err;
- st_sensors_dev_name_probe(&spi->dev, spi->modalias, sizeof(spi->modalias));
- settings = st_magn_get_settings(spi->modalias);
- if (!settings) {
- dev_err(&spi->dev, "device name %s not recognized.\n",
- spi->modalias);
- return -ENODEV;
- }
- indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*mdata));
- if (!indio_dev)
- return -ENOMEM;
- mdata = iio_priv(indio_dev);
- mdata->sensor_settings = (struct st_sensor_settings *)settings;
- err = st_sensors_spi_configure(indio_dev, spi);
- if (err < 0)
- return err;
- err = st_sensors_power_enable(indio_dev);
- if (err)
- return err;
- return st_magn_common_probe(indio_dev);
- }
- static const struct spi_device_id st_magn_id_table[] = {
- { LIS3MDL_MAGN_DEV_NAME },
- { LSM303AGR_MAGN_DEV_NAME },
- { LIS2MDL_MAGN_DEV_NAME },
- { LSM9DS1_MAGN_DEV_NAME },
- { IIS2MDC_MAGN_DEV_NAME },
- {},
- };
- MODULE_DEVICE_TABLE(spi, st_magn_id_table);
- static struct spi_driver st_magn_driver = {
- .driver = {
- .name = "st-magn-spi",
- .of_match_table = st_magn_of_match,
- },
- .probe = st_magn_spi_probe,
- .id_table = st_magn_id_table,
- };
- module_spi_driver(st_magn_driver);
- MODULE_AUTHOR("Denis Ciocca <[email protected]>");
- MODULE_DESCRIPTION("STMicroelectronics magnetometers spi driver");
- MODULE_LICENSE("GPL v2");
- MODULE_IMPORT_NS(IIO_ST_SENSORS);
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